International Journal of Systems Applications, Engineering & Development
E-ISSN: 2074-1308
Volume 6, 2012
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Issue 1, Volume 6, 2012
Title of the Paper: On a Modal Approach for Oscillations Damping in Affine and Piecewise Affine Systems
Authors: Virginia Ecaterina Oltean, Radu Dobrescu, Dan Popescu, Maximilian Nicolae
Pages:
Abstract: In the case of continuous affine systems, an oscillating behavior, due to the presence of pairs of complex eigenvalues in the spectrum of the system matrix, is considered. The control problem consists of damping the oscillations and tracking a piecewise constant reference signal. A control solution is proposed, based on pole placement combined with the internal model principle. Sufficient conditions for the controller existence are deduced and some issues concerning fixed and variable step simulations approaches are discussed. The results are extended to piecewise affine hybrid systems, composed of a set of piecewise affine systems and a switching strategy based on a state space partition.
Title of the Paper: The Water Vapor Influence in Gas Emissions in a Four Stroke Diesel Engine
Authors: Charalampos Arapatsakos, Achilleas Dratzidis, Anastasios Karkanis
Pages: 9-16
Abstract: In nowadays there are an increased number of cars and vehicles, which run on gasoline or diesel fuel. As a result of this is the production of air pollution. There are several many types of air pollutant. These include smog, acid rain, the greenhouse effect and holes in the ozone layer. Some of these pollutants can be created by human activities, such as cooking, smoking, car emissions, smokestacks and other industrial inputs into the atmosphere and other by atmospheric conditions, such as the wind and rain. This work examines the effect of water vapour in gas emissions in Diesel engine. It includes the background and the calculation of an adequate supply of water vapour in the exhaust pipe, the operating principles of the Diesel engine, nozzles and the basic principles of spraying. It also includes the process of setting up the experimental setup and the execution of our experiments. Finally the diagrams that derived from the experimental measurements of the quantities of air pollutants, with water vapour and without, are presented, and their description, their analysis, general conclusions and our suggestions for further investigation.
Title of the Paper: Improved Demand Forecasting Using Local Models Based on Delay Time Embedding
Authors: Bernd Scholz-Reiter, Mirko Kuck, Christian Toonen
Pages: 17-27
Abstract: Due to growing dynamics and complexity of today’s markets, customer demands are often highly volatile. In order to achieve a well-founded forecast of customer demands, a company has to consider several dynamic influences. Classical simple statistical prediction methods are mostly easy to apply but are not able to react on dynamic behavior. More complex statistical methods achieve better forecasts but also do not include dynamic means. Prediction methods of nonlinear dynamics consider qualitative in addition to quantitative information within time series of past customer orders in order to achieve better forecasts into the future. In particular, local models use the information fostered by delay time embedding of nonlinear time series analysis. In this paper, a research approach is presented that has the goal of outlining suitable prediction methods for future customer demands of a forecasting company in a production and delivery network.
Title of the Paper: The Gas Emissions Temperature in Relation of CO, HC, NO and Smoke
Authors: Charalampos Arapatsakos, Dimitrios Christoforidis
Pages: 28-35
Abstract: Clean air is an important factor in the quality of life. Therefore, air pollution is something that we cannot really ignore, as it affects negatively the environment and consequently the sustainability of our lifestyle and production methods. Air pollution is evident from the moment we step out of our house and greeted with black colored smog that hit us directly. This smog is not due to climate but rather due to each and every one of us. This work examines the correlation of exhaust gases temperature and rounds/min with gas emissions (CO, HC, NO, smoke) in a four-stroke diesel engine, using Multillayer Perceptrons (MLP) Networks. The Multilayer Perceptrons Network relates with high precision the temperature of exhaust gases and rounds/min of the engine, with gas emissions. The importance of this work is that when measuring the exhaust gases temperature and the rounds/min of engine forecast with very high precision their gas emissions. The comparison of results became using measurements from the real function of engine.
Title of the Paper: Identifying the Main Defects Appeared in the Structure of Continuous Blanks
Authors: Erika Popa, Teodor Heput, Erika Ardelean, Ana Socalici
Pages: 36-43
Abstract: The study we carried out aims at defining and sorting the internal flaws specific for continuous cast semi-finished products, in order to enable the identification of their source and to help in taking the appropriate steps meant to prevent or to correct them, as the case may be. Industrial research has been done on the five-strand continuous casting machine over a period of several months, when we focused on the nature of the internal flaws that were found on reception of the material under study.
Title of the Paper: Researches on the Influence of Alloying Elements on the Adamit Steel Type
Authors: Adina Pauca, Teodor Heput, Virginia Socalici
Pages: 44-51
Abstract: Chemical composition of the alloy from which the cylinders are made by rolling is one of the main factors that determine macro and micro structure. This paper presents a method of optimizing the chemical composition of rolling cylinders made of carbon steel with high concentration. Based on industry to study the influence of alloying elements on steel rolling mill cylinders cast for the determination of correlation between surface hardness cylinders and alloying elements. Optimization of chemical composition of the cylinder was made by mathematical modeling of real experimental data obtained from production using specialized computer program Excel and Matlab. Correlations obtained were plotted in this way being able to determine optimal areas between hardness and hold various alloying elements.
Title of the Paper: A Distributed Design for Computational Steering with High Availability of Data
Authors: Cosmin Marian Poteras, Mihai Mocanu, Constantin Petrisor
Pages: 52-61
Abstract: This paper introduces a new approach, based on state machines, for distributed frameworks, that is able to support both distributed simulation and computational steering. The framework makes use of a Distributed Chunk-based Flow Management System (DCFMS) having as main benefits the logical partitioning and data localization information. The architectures and implementation details of the two systems as well as integrative experimental results are briefly discussed.
Title of the Paper: Instrumentation & Control Architecture Applied for safe operation of a Hydrogen Isotopes Storage System
Authors: Eusebiu Ilarian Ionete, Bogdan Monea, Marian Vacaru
Pages: 62-69
Abstract: A critical issue, in direct connection with the tritiated heavy water processing in a detritiation plant, is the safe storage of the obtained Tritium, both for environment and operating personnel. The properties of Hydrogen storage used materials refers to their ability to high “connect” Hydrogen, to have a large storage capacity, to be easily achievable and, if necessary, to allow its easy recovery. The metals and intermetallic compounds are the most used materials. To build a safe storage container for Tritium resulted from a heavy water detritiation facility, we investigate titanium powder and titanium sponge as a storage material for Hydrogen isotopes, Protium and Deuterium. Since the reaction of metal hydride formation is, in most cases, sever exothermic and for many materials almost spontaneous, new control system architecture applicable to Hydrogen isotopes storage media, taking into account all those properties, is presented. This architecture uses the resources of a DCS (Distributed Control System), based on i-processor technology (able to integrate all typical control functions, friendly display options, an alarm management system, historical data bases and advanced control tools). These resources usage allows us to operate a Deuterium and Tritium storage system under automatic control and to use an advanced Operator Interface too. The DCS closed loop algorithm is used for manual and automatic closed loop control for monitoring the corresponding operating conditions.
Title of the Paper: The Macroregion Approach and Territorial Cohesion of the Baltic Region
Authors: Tatjana Staube, Ineta Geipele
Pages: 70-78
Abstract: The Baltic Sea Region as macroregion moves towards the regional economic approach and to build a knowledge-based economy, the new member states are in decentralization process. Spatial planning is relatively new term for the Baltic Sea Region. The authors focus on the economical development of the Baltic Sea Region The article provides an overview on the spatial planning meaning, trends of the newest research and modeling in spatial planning in the Baltic Sea Region. Several multidimensional models on the spatial planning systems are observed. The Paper also contains the sustainable development model worked out by the authors for the modern industrial real estate property.
Title of the Paper: Selection, Generation and Extraction of MCCTree using XMCCTree
Authors: U. S. Sazaly, M. H. Selamat, S. Baharom, M. Ab. Jabar
Pages: 79-86
Abstract: Previous research proposed notions of CLCA and MCLCA to answer keyword query in XML document. The notions are implemented in its proposed algorithms and the result, namely MCCTree, is ranked with its proposed ranking method. The algorithms transform the XML tree into a compact global tree called CGTree, and select the MCCTree from the CGTree. The resulted MCCTree is in a compact structure; however the calculation in the ranking method requires the original structure as in the XML tree. Thus, this paper presents a new algorithm that implements the same notions with different approach. The MCCTree is returned in a structure as required by the ranking method. This algorithm, called XMCCTree, improve the efficiency of producing a set of MCCTree in answering keyword query in XML document.
Title of the Paper: Sizing of a 3,000,000t Bulk Cargo Port through Discrete and Stochastic Simulation Integrated with Response Surface Methodology Techniques
Authors: L. Cassettari, R. Mosca, R. Revetria, F. Rolando
Pages: 87-97
Abstract: The purpose of the study is to size, by means of a discrete and stochastic simulator, a bulk cargo port for the unloading of coal to cover the annual requirements of a thermal power plant located next to the berth. The logistics system under consideration had to be designed so that it could ensure the supply of enough coal for the operation of the plant while reducing the overall operating costs of the system (freightage, demurrage for delays in unloading operations, investment costs, overheads) to a minimum. Thanks to Design of Experiments (DOE) and Response Surface Methodology (RSM), it was possible to determine the mathematical relationship, in the form of regression meta-model, existing between the design variables and the target function consisting in the overall annual operating cost. After the sizing it has been finally done an analysis of the strength of the identified solution as the needs for coal on the part of the power plant, with a specific reference to the capacity of the intermediate accumulation tank which constitutes a critical element in the design of this type of plants.
Title of the Paper: Automatic Identification Technologies
Authors: Maria Vlad, Alexandra Anisie, Madalin Stefan Vlad
Pages: 98-105
Abstract: With increasingly urgent need for reliable security, biometrics is being spotlighted as the authentication method for the next generation. Among numerous biometric technologies, fingerprint authentication has been in use for the longest time and bears more advantages than other biometric technologies do. In this paper there are proposed two systems based on biometric identification, in conjuction with smart card, for proof of advanced security offered by the systems. There are presented also background of fingerprint recognition, along with data storage on smart cards and RFIDs.
Title of the Paper: Real-Time Implementation of Predictive Control using Programmable Logic Controllers
Authors: Marian Mrosko, Eva Miklovicova
Pages: 106-113
Abstract: In this paper the real-time aspects of digital control system implementation are investigated. The control system design is based on the model predictive control, which is one of the most popular advanced control design techniques. Two alternatives of predictive control implementation using the programmable logic controllers (PLC) are proposed and compared. In the first case the control law design and execution is performed in PC using the MATLAB/Simulink environment and the PLC is used only to accomplish the data acquisition and control input implementation. The communication between PC and PLC is ensured by the OPC communication protocol. In the second case the control law is irectly implemented in PLC using the available instructions. The PC is not needed for the real-time control execution; it only supports the control design and the signal processing and visualization. In both cases controlled plant is wired to PLC.
Title of the Paper: Measurement of the Wheel-rail Relative Displacement using the Image Processing Algorithm for the Active Steering Wheelsets
Authors: Min-Soo Kim
Pages: 114-121
Abstract: The central problem of the active wheelsets steering systems of the railway vehicles is the measurement of the lateral movements of wheelsets with the noncontact manner. This paper describes the development of a real-time vision system for active steering of a railway vehicle to detect a lateral displacement between wheel and rail in various dynamic environments. An active steering system has proven its ability to reconcile the contradictingrequirements of running stability and track friendliness on curve sections and it consists of one actuator, a controller, and sensors. As one of the sensor system for detecting the wheel/rail relative displacement in active steering bogie, the image processing techniques were investigated with the aid of the vision based image processing algorithm. In this paper, we present the design and implementation of a real time vision system for a railway vehicle to measure its wheel/rail displacement. In order to extract wheel and rail features, this paper uses the various successive image processing algorithms which consist of the camera compensation algorithm against the degradation image quality, the algorithm for improving the contrast effect based on the block of the input image, the pre-processing algorithm coped with the dynamic illumination environment based on the edge, the line segment extraction algorithm of the wheel and rail using the RHT (Random Hough Transformation), and the wheel-rail lateral displacement calculation algorithm. Running test results show that our proposed lateral displacement measurement method is accurate in each sampling rate, and make it a sensor to be placed in the active steering control systems.
Title of the Paper: Development of the Braking Performance Evaluation Technology for High-speed Brake Dynamometer
Authors: Min-Soo Kim
Pages: 122-129
Abstract: Brake system of railway vehicles has a crucial role for the safety as well as riding quality of passengers. And the technology of braking performance evaluation has been generally developed with technology of speed improvement of railroad vehicle. Brake dynamometer is designed to simulate the brake characteristic of the high speed train, and has a function of record the data which can be reproduced and help to analyze and compare the experimental object, and also is used to develop and test the brake systems. In this paper, we tried to test braking friction materials (disc brake and block brake) for the high speed rotation which is in a current use commercially, and its results will be introduced by means of arranging of a braking performance test evaluation technology on braking friction materials of railway vehicle using the high speed dynamometer (400 [km/h]-grade).
Title of the Paper: Photo- and Electroluminescence Properties of Pb1-xMnxTe(Se,S) Thin Films
Authors: M. A. Mehrabova, H. R.Nuriyev, T. H. Ismayilov
Pages: 130-136
Abstract: In the given work the energy spectrum and wave functions have been theoretically calculated for quantum-sized films of Pb1-xMnxTe(Se,S) semimagnetic semiconductors. The photo- and electroluminescence properties of Pb1-xMnxTe(Se,S) thin films by the method of molecular beams epitaxial on BaF2 substrates were studied. It was established that band gap width of epitaxial layers expanded by the change in Mn amount. In the present report are given investigation results of the structure, morphology of a surface and physical properties of epitaxia Pb1-xMnxTe (x=0.02) films grown by the «hot wall» method in ultrahigh vacuum ( ?(3 ? 5) ?10- 9 Torr) unit with oil free evacuation. It is established, that at ultrahigh vacuum residual pressure of gases in working volume plays an appreciable role during growth of epitaxial films with perfect structure and high electrophysical properties. Comparison and generalization of the received results with other A4B6 chalcogenides grown in ultrahigh vacuum have been carried out.
Title of the Paper: Intuitive Robot Programming for Automation of Low Standardized Logistic Processes
Authors: M. Rohde, S. Kunaschk, M. Lutjen, F. Ahrlich, A.-K. Pallasch
Pages: 137-145
Abstract: The increasing globalization of trade flows causes a continuous growth of packaged goods and results in an increasing demand for handling of general cargo. Due to low standardized logistic processes, the use of automation technologies for improving the handling efficiency is very challenging. Depending on requests of suppliers and customers, the logistics service providers have to develop individual solutions for logistics processes. If automation technology, e.g. industrial robots, is used to optimize the processes, it has to adapt to changed conditions. This leads to complex systems and time-consuming tasks of robot programming. In order to face this challenge, this paper presents an approach for intuitive control of robots by using a cyber physical system (CPS). First, it describes challenges for automation of logistic processes and discusses the main idea of cyber physical systems. Subsequently, the concept of cyber physical robotic systems for logistics (CPRSL) is depicted and an example application is given, which bases on robot programming by demonstration (PbD). Within the logistic task of “depalletizing boxes” the system is tested and evaluated.
Title of the Paper: Real Genetic Algorithm Based Fuzzy–AHP Approach to Congestion Relief via UPFC
Authors: H. Iranmanesh, M. Rashidi-Nejad
Pages: 146-153
Abstract: Power systems may not capable of utilizing full transmission capacity. Restructuring of electricity industry may need some management criteria in order to improve technical as well as economical efficiency. Under the new scheme of power markets, congestion management is a crucial problem that is needed to be considered. One of the most important issues related to restructured power systems is congestion transmission. Congestion relief can be handled using FACTS devices, where transmission capability may be improved. The optimal location of UPFC (Unified power flow controller) to relieve congestion in the network is proposed. In congestion management, the objective function is nonlinear hence for solving this function real genetic algorithm (RGA) is used for optimization process while analytical hierarchy process (AHP) with fuzzy sets is implemented to evaluate RGA fitness function. The above method is tested on modified IEEE 5-bus system.
Title of the Paper: PID Control Strategy for Sensor Random Packet Dropouts in Networked Control System
Authors: Eva Miklovicova, Marian Mrosko
Pages: 154-162
Abstract: In this paper the control strategy for networked control systems is proposed that is able to deal with the problem of data packet dropout at the sensor-controller link. The PID control structure implemented in Simatic S7-200 programmable logical controller is considered. The control design is based on the generalized predictive control (GPC) where the sequence of future control inputs sequence up to a given horizon is calculated at each sampling instant which can be stored and used at next sampling instants in case the current output value is not available. The PID controller tuning rules are obtained by equating the PID control law with the pole-placement control structure of GPC given some conditions on the plant model orders. The proposed control strategy is implemented as switched control system where two or more control laws are switched arbitrarily often. The closed loop stability is investigated using the concept of quadratic stability.
Title of the Paper: Verification of the Behavior of Deck Bridges with Encased Filler Beams
Authors: V. Kvocak, V. Kozlejova, M. Karmazinova
Pages: 163-170
Abstract: This paper pertains the experimental research into filler-beam deck bridges with encased beams of various sections.For more effective steel utilization inverted T-sections are used. Resistances of deck bridges using various types of composite action between steel members/filler beams and concrete are compared. Design values of resistance moment for individual types of beam are calculated according to Eurocode 4. The theoretical calculations and their results are further verified in experiments.
Issue 2, Volume 6, 2012
Title of the Paper: Concept of 3 E’s and Public Administration Performance
Authors: Milana Otrusinova, Eliska Pastuszkova
Pages: 171-178
Abstract: The article aims to show the possibilities of performance management in public administration institutions through the principles of “3E’s”, namely on the example of the Czech Republic. The aim is to discuss the possibility of performance management using the principles of “3E’s”, i.e. economy, effectiveness and efficiency. In the first part of this article, the definition of performance issues within public administration institutions is discussed, followed by the definition of using the principles of “3E’s” in connection with the very performance management. Part of the text comprises also a proposal for a decision tree applicable to performance management using the principles of “3E’s”. Addressing the issue is adjusted to the situation in the Czech Republic, but general conclusions can be applied to the situation in other countries as well.
Title of the Paper: Advanced Approach to Intelligent Transport Systems Design
Authors: Miroslav Svitek, Tomas Zelinka, Vaclav Jirovsky, Michal Jerabek
Pages: 179-187
Abstract: Paper presents basic approach to advanced design of Intelligent Transport Systems (ITS) using predefined ITS architecture, interfaces and performance parameters assigned into each functions and processes. All described methods have direct impacts to economical analyze and effectiveness of ITS system and can be understood as the advanced model of complex ITS system. Described approach to the ITS design is revealed by example of the hybrid electronic toll collection system design.
Title of the Paper: Obtaining an Optimum PID Controllers for Unstable Systems using Current Search
Authors: D. Puangdownreong, A. Sakulin
Pages: 188-195
Abstract: A significant application of the current search (CS), anovel meta-heuristic intelligent search method in industrial controldomain, is proposed in this article. The CS is inspired by an electriccurrent flowing through electric networks. It is conducted tosynthesize an optimum PID (proportional-integral-derivative)controller for stabilizing three unstable plants, i.e. invertedpendulum, ball-beam, and pitch control systems. The CS is used tosearch for the optimum controller’s parameters denoted asproportional, integral, and derivative gains. As simulation results,optimum PID controllers can be achieved by the CS. The resultsobtained are very satisfactory.
Title of the Paper: Experiments on Energy Management in Active Suspension of Vehicles
Authors: Katerina Hyniova, Miloslav Krajl, Ladislava Smitkova-Janku
Pages: 196-203
Abstract: Nowadays the theoretical research concerning theactive suspension of mechanical vibrations and improving ridecomfort and handling properties of vehicles is concentrating onvarious suspension innovations.The main goal of the paper is to describe H? controlled activesuspension design with respect to the management of the energyflow distribution. In the time of growing interest in the overallminimization of energy consumption, the presented paper could betaken as a contribution to these efforts. Especially in theapplication field of automotive vehicles, the energy consumptionoptimization plays an important role in the design process.Suspension system influences both the comfort and safety of thepassengers. In the paper, energy recuperation and management inautomotive suspension systems with linear electric motors that arecontrolled by a designed H? controller to generate a variablemechanical force for a car damper is presented. Vehicle shockabsorbers in which forces are generated in response to feedbacksignals by active elements obviously offer increased designflexibility compared to the conventional suspensions with passiveelements (springs and dampers). The main advantage of theproposed solution that uses a linear AC motor is the possibility togenerate desired forces acting between the unsprung (wheel) andsprung (one-quarter of the car body mass) masses of the car,providing good insulation of the car sprung mass from the roadsurface roughness and load disturbances. As shown in the paper,under certain circumstances linear motors as actuators enable totransform mechanical energy of the vertical car vibrations toelectrical energy, accumulate it, and use it when needed. Energyflow control enables to reduce or even eliminate the demands onthe external power source. In particular, the paper is focused onexperiments with active shock absorber that has been taken on thedesigned test bed and the way we developed an appropriate inputsignal for the test bed that as real road disturbance acts upon thevibration absorber and the obtained results are evaluated at the end.Another important point the active suspension design shouldsatisfy is energy supply control that is made via standard controllermodification, and which allows changing amount of energyrequired by the system. Functionality of the designed controllermodification was verified taking various experiments on theexperiment stand as mentioned in the paper.
Title of the Paper: Capturing Organizational Dynamics by Using the Dresdner Reference Model: A Valuation Approach
Authors: Peter Kögler, Tomas Krabec
Pages: 204-212
Abstract: In our paper we focus on merging two analytical approaches for evaluating mid-term strategic and financial viability of medium sized enterprises. For the first time we tried to apply a newly created methodology called the Dresdner reference model. By taking into account a large empirical research sample of German SMEs we suggest using generic discounted cash flow models as a tool to cope with identifying the principal factors driving and sustaining the firm’s competitiveness and value. In the following methodological analysis we identify the success factors of medium-sized industrial companies located in the region of Dresden, Germany, draw implications for correctly applying the well established discounted cash flows models and conclude by deriving a basis for creating an early warning tool supporting preventive value sustaining managerial strategic decision making.
Title of the Paper: Planning Large Engineering Project in High Risk Country Areas: The Evaluation of Local Content Strategies in the Oil & Gas Industry through a Robust Planning Technique
Authors: M. De Falco, M. Gallo, L.C. Santillo, E. PM Troncone, P. Viecelli
Pages: 213-221
Abstract: The paper propose a different approach to evaluate the local content investments: starting from defining what is meant by local content, and considering investment in local content as a real economic strategies that generate opportunities for the area and for the project (including the mitigation of exposure to certain types of risks), we propose their evaluation in a scenario analysis model. The Local content of a complex project is an important variable to create value and increase the overall sustainability of large engineering projects in the Oil & Gas industry, especially in the developing countries. The evaluation methodology is applied to a case study carried out in collaboration with Saipem (ENI group), one of the major international contractor in the oil industry, specialized in developing complex projects in remote areas.
Issue 3, Volume 6, 2012
Title of the Paper: Three Axis Attitude Control Using Sliding Mode Based on the Artificial Neural Network for Low Earth Orbit Microsatellite
Authors: A.M. Si Mohammed, B. Seba, Y. Bentoutou, N. Taleb, A. Boudjemai, A. Bellar
Pages: 223-233
Abstract: This paper presents the results on the performance ofthe sliding mode attitude controller for three axis attitude pointingbased on the artificial neural network adjusted by a geneticalgorithm for low Earth orbit microsatellite. Alsat-1 first Algerianmicrosatellite had been chosen for this study.
Title of the Paper: Static Output Feedback Fuzzy Controller of a Synchronous Machine
Authors: Ouaaline Najat, Elalami Noureddine
Pages: 234-241
Abstract: This paper study the design of a static output feedback fuzzy controller for a synchronous machine without damper. The non-linear mathematical model is described by a continuous-time Takagi-Sugeno (T-S) fuzzy model. Motivated by stability results developed for parallel distributed compensation (PDC) controller, an Output PDC (OPDC) controller that corresponds to a nonlinear static output feedback control law is proposed. Based on the Lyapunov stability criterion, the stability analysis is presented in terms of Linear Matrix Inequalitie (LMI) optimisation to seek the static output feedback gains that satisfy the Lyapunov stability inequalities. Simulation results for synchronous machine demonstrate the OPDC controller’s effectiveness.
Title of the Paper: How to Build Up a Lean Production Systems
Authors: D. Tuček, J. Dlabač
Pages: 242-250
Abstract: The article is focused on building lean manufacturing systems. Certainly it is not possible to design a universal method which will be valid for all businesses. When you create your own system it is always necessary to consider the specific and unique conditions, which are undoubtedly the size of the company, the production program, the company culture or way of proceeding. However, we can define a number of principles and recommendations which we can direct use on the right path for a functioning system of production. And this is the main aim of this paper. They are presented the various methods and tools of the modern industrial engineering, which is suitable to used in the individual stages of building own production system. These methods are not focused only to the production, but we must also take into consideration support and service processes. Without consistent synergy of development, production, logistics and administrative processes is not possible to build a functioning production system. Strong emphasis in the article is not given only on the methodology, but also a practical demonstration of building a lean manufacturing system in terms of a specific enterprise. Therefore, the article is supplemented by at the end of the case study that is focused both on the methodology, as well as the declaration of the benefits arising from the implementation itself.
Title of the Paper: Recovery of Powdery Waste Results from Technological Flows in Siderurgy
Authors: A. S. Todorut, A. Socalici
Pages: 251-258
Abstract: In the technological flows of iron and steel results a series of waste. This waste, depending to their grain structure, can be recovery and reuses by different ways, using recovery methods. Due to the very fine structure, a part of the waste may be recovered through pelleting. The powder waste used in experiments in this paper it was processed by pelleting process, following a strength process of pellets using a lot of diagrams, modifying the heating time of their. The results of experiments were processed in Excel program, resulting in a series of graphical and analytical correlations between the diameter of pellets and compressions strength, being presented for each variant.
Title of the Paper: Integration Planar Transformer for Reducing Volume, Leakage Inductances and Improve EMC Disturbances of a Radar Power Supply
Authors: Sega Gueye, Brayima Dakyo, Sylvain Alves, Joël Cordier, Philippe Eudeline
Pages: 259-266
Abstract: This article deals with EMC (ElectromagneticCompatibility) disturbances caused by leakage inductances and straycapacitances of the internal transformer from a power supply unit fora radar subset. A measurement in emissive conductance shows thattheir frequencies are critical facing the military standard MIL-STD-461E EMC. To cancel their disturbances, reduce the volume and theweight, the planar technology is used. A new interleaving techniqueslayers of a planar transformer, is used to further reduce the leakageinductances.
Title of the Paper: A Proposal of a Method for Evaluating the Project Progress Status Based on the Constraints
Authors: Yuichi Inoue, Kazuki Mori, Seiichi Komiya
Pages: 267-278
Abstract: A lot of whether or not a software project is successful depends on the management capability of the project manager. Therefore, EVA (Earned Value Analysis) has received a lot of attention recently as a method for managing a project in an integrated fashion by introducing a unified metric called EV (Earned Value) and quantitatively measuring and analyzing the cost and schedule of a project. Project managers can use EVA to estimate SEAC (Schedule Estimate At Completion) and EAC (Estimate At Completion). However, since EVA is a method without taking account of the constraints on assigning human resources: the available periods of each person, and so on. EVA quite often generates inaccurate estimations for SEAC and EAC. In addition, suppose that it is not possible to meet the deadline due to process delay if the project proceeds without taking any measures to recover the process delay. In this case, it is necessary to provide a prospect that indicates whether or not the project can be completed within the original delivery deadline (i.e., it is possible to meet the deadline) if any countermeasures are adopted to recover the process delay. If there is some way to return the project schedule to its original schedule and complete it within the assigned time table, it is necessary to be able to present the countermeasure or an actual development plan. However, EVA cannot show any countermeasures which it is possible to restore the project schedule to its original schedule even if such countermeasures exist. This paper proposes a method to solve these problems and discusses its effectiveness by comparing the authors’ approach with that of the EVA.
Issue 4, Volume 6, 2012
Title of the Paper: Developing a Service Innovation Utilizing Remotely Piloted Aircraft System (RPAS)
Authors: Ilkka Tikanmäki, Tuomo Tuohimaa, Harri Ruoslahti
Pages: 279-287
Abstract: Co-operation between authorities is at the beginning of new challenges. When authorities co-operate successfully, this prevents duplication of efforts and increases efficiency. Many public authorities have at the moment and in the future same needs for equipment and systems. Operational and command centers of authorities (for example, police and rescue service), have potential needs to improve continually their situational awareness and a real time picture.Related research and development (R&D) in public and private sector has an important role already today. Research and development is in a key position at first step. The importance of safety is the key element when operating on the air. A well planned system takes notice of the end user and is made in co-operation with the equipment manufacturers and end-users. One of the main challenges is to accompany manufacturers and end-users.Public and private co-operation is needed and it must be increased. Legislation must be in line both with the international and national levels. Legislation does not sufficiently or even at all detect the UAS activity. Developing this kind of service innovation is in an important and challenging role for three reasons; 1) various actors need to be able to meet the demand of the right way, 2) it must give a special attention for many different needs, and 3) because of the inadequate aerial legislation as for unmanned aviation.
Title of the Paper: Mean and Turbulent Experimental Airflow Inside a Vane Separator
Authors: Eusébio Z. E. Conceição, João M. M. Gomes, Daniel R. B. Geraldo
Pages: 288-295
Abstract: An experimental study of the mean and turbulentexperimental air flow inside a vane separator is made. Experimentaltechniques are used in air velocity evaluation.Two different inlet air velocity values are used in order to evaluatethe airflow topology inside a vane separator. The experimental studyis done inside a vane separator system constituted by zigzag andsemi-circular deflectors, built in stainless steel, placed inside anexperimental module built in Perspex.Air velocity fluctuations, for two different airflow values, aremeasured. The air velocity fluctuations, using hot-wire anemometry,are measured inside the zigzag and semi-circular deflectors. The airvelocity fluctuations is used to evaluate the mean air velocity, the airvelocity root mean square, the air turbulence intensity, the airvelocity fluctuation equivalent frequencies and the air velocityfluctuations frequencies. In the air velocity equivalent frequencies thepower spectra is used.
Title of the Paper: RFID as an Enabler of Materials Management: The Case of a Four Layer Construction Supply Chain
Authors: Yassine El Ghazali, Élisabeth Lefebvre, Louis A. Lefebvre
Pages: 296-307
Abstract: Among the array of innovative Information and Communication Technologies (ICTs) that could be deployed in the construction industry, radio frequency identification (RFID) technology stands out as a radical innovation that can overcome materials flows deficiencies. This paper, based on an exploratory field research, analyzes the potential of RFID for the management of materials across four layers of one construction supply chain. Results reveal that the RFID-enabled materials management application would lead to a more efficient communication within and between the four layers of the supply chain, more accurate inventories, a tighter project control, more efficient quality controls, and, overall, a smoother optimization of day-to-day materials management. Furthermore, the implementation of this RFID application will reduce project costs by an estimated 2%. Although this cost reduction (2%) appears to be marginal, the RFID project would have a decisive impact on the bottom line with an increase in profits ranging from 17% to 20%.
Title of the Paper: Robotic Alternatives for Bedside Environments in Healthcare
Authors: Johnell O. Brooks, Ian D. Walker, Keith E. Green, Joe Manganelli, Jessica Merino, Linnea Smolentzov, Tony Threatt, Paul M. Yanik, Sean Ficht, Robert Kriener, Mary Mossey, Alper Mutlu, Darshana Salvi, George Schafer, Pallavi Srikanth, Peng Xu
Pages: 308-316
Abstract: We present ART, a new concept for a novelreconfigurable bedside environment featuring a suite of networked,robotic components. Physically, the system is the hybrid of a typicalnightstand found at home and the over-the-bed table universallyfound in hospital patient rooms. It is comprised of: smart storagevolumes that physically manage and deliver personal effects; a tablesurface that gently folds, extends, and/or reconfigures to supportwork and leisure activities; and an accessorized headboard. Theserobotic components recognize, communicate with, and partlyremember each other in interaction with human users. The system isdesigned to be deployed in a typical healthcare facility or within anydomestic interior. The work is aimed at increasing the quality of lifeof both healthy individuals and persons with impaired mobility andcognitive functioning by intelligently supporting their interactionwith their environment. We describe both the overall vision, animplementation scenario, and a working prototype of the system.
Title of the Paper: Application of Fuzzy Logic in Aircraft Sensor Fault Diagnosis
Authors: E. Kiyak, F. Caliskan
Pages: 317-324
Abstract: Due to the possibility of unexpected situations, the authorities feel the necessity of keeping certain sub systems or components of aircraft under continuous scrutiny. Accordingly, sensors in flight control systems are considered as one of the crucial components of the system. The failure to detect sensor faults is quite likely to cause very serious problems, which makes it vital to carry out effective fault detection and isolation processes. Through the determination of the size of the fault, it might be possible to make use of this information in the realization of the repair. In this study, the detection and isolation of sensor faults are carried out through bank of Unknown Input Observers. Additionally, a structure using fuzzy logic is suggested in order to have an idea about the size of the fault. When this suggested structure is used, it might be possible to choose the most suitable control type to remove the effects of the fault by control reconfiguration following fault detection and isolation. To use some reliability maintenance procedures reduces the number of the catastrophic failures.
Issue 5, Volume 6, 2012
Title of the Paper: Robust Wrist-Type Wireless Multiple Photo-Interrupter Pulse Sensor
Authors: Toshinori Kagawa, Atsuko Kawamoto, Nobuo Nakajima
Pages: 325-332
Abstract: Long-term wearable vital sensors, monitoringparameters such as temperature, pulse, and blood pressure, areimportant for the daily care of patients and the elderly[1][2][3][4][5][6][7]. These monitoring sensors are available forpatients who remain in hospital beds; however, for active elderlypeople who do not stay in bed, long-term continuous measurement is achallenge. The sensor must be attached to the body without increasingstress. Although various types of pulse sensors are available, awristwatch-type pulse sensor is one of the most common wearablesensors. However, this sensor still does not meet all of therequirements such as being reliable, easy to wear, and stress-free.In this paper, a novel wristwatch-type pulse sensor is proposed. Itemploys multiple photo-interrupters. Its structure is very sensitive androbust against movement of the hand. Experiments verified that theproposed sensor met the requirements mentioned above.In order to use the pulse sensor in daily life, the sensor and thedata-collecting server are connected via a ZigBee wireless module.
Title of the Paper: Innovation Vouchers as a Suitable Instrument for Effective Public Support of Innovations by Local Public Administration
Authors: J. Stejskal, K. Matatkova
Pages: 333-341
Abstract: This time supporting of innovation making process is very important way how to increase the competitiveness of the region and move the region on the higher economical level. But there is no general tool how to effectively support the cooperation which is key condition for innovation making process. Because without cooperation among entrepreneurs and public R&D institutions there will be no spill-over effects which are the keys for the diffusion of knowledge and birth of innovation. In this context the innovation vouchers was introduced in South Moravian Region. It is very suitable tool for supporting the cooperation among entrepreneurs and pubic R&D institutions. The aim of this paper is introduce the background and situation which lead to implementing innovation voucher program in South Moravian Region (Czech Republic) and evaluate the efficiency of this tool for the region.
Title of the Paper: Physical Protection and Critical Infrastructure Protection in the Czech Republic
Authors: L. Necesal, L. Lukas
Pages: 342-349
Abstract: Approaches of Physical Protection are used beside the protection of commercial buildings to protect objects and systems with national and international significance, therefore to Critical Infrastructure Protection. In the introduction of this paper are presented threats that are perceived as important and which should be reduced mainly through critical infrastructure protection. Main point of paper is to present systems that belong to the physical protection area and that are used in the protection of critical infrastructure element. The most commonly used systems, their brief definition and delimitation of their contribution to the protection of critical infrastructure are introduced. The end of paper summarizes other measures that can be used in combination with physical protection systems to protect critical infrastructure.
Title of the Paper: Analysis of Two-Stage High-Temperature Heat Pump Efficiency
Authors: M. Jotanovic, G. Tadic, J. Krope, D. Goricanec
Pages: 350-363
Abstract: The paper shows the potential benefit of using low temperature heat sources with high temperature pumps. Two-stage heat pumps with flash unit and heat exchanger are described. To determine the characteristic parameters of the two heat pumps a computer program was designed, with which we could determine the dependence of COP and compressor pressure ratios from evaporating temperature. An economic analysis of the justification of the use of heat pumps was made.
Issue 6, Volume 6, 2012
Title of the Paper: Optimal Proportion of Refrigerants in Single-Stage High-Temperature Heat Pump
Authors: M. Jotanovic, M. Miscevic, B. Kulcar, D. Goricanec
Pages: 365-375
Abstract: The paper presents types of refrigerants with their characteristics for use in single-stage high-temperature heat pump. A mathematical model is designed; based on the use of the modeling language GAMS a simulation of optimum mixture proportions of two refrigerants was made, which allows for the heat pump to operate the most efficient. Software package Math Cad Professional was used to make calculations of the characteristic properties of the heat pump.
Title of the Paper: Influence the Nozzle Shape on Local Heat Transfer in Impinging Jet
Authors: M. Attalla, M. S. Ahmed
Pages: 376-383
Abstract: The local Nusselt number distributions ofcircular nozzle on a heated flat plate were experimentallyinvestigated for various nozzle geometries. Experiments havebeen conducted with variation of exit Reynold's number, Re, isvaried from 6000 to 40000 and plate surface spacing to nozzlediameter, H/d, in the range of 1 ? H/d ? 6 for single nozzlewith square edge (non-chamfered) and chamfered nozzles ofthe same diameter, 5 mm. The chamfered length, Lc is variedfrom 1 mm to 3.65 mm with constant chamfered angle, θ = 60for each nozzle configuration. The temperature distributionson the heated flat plate were measured using a thermographcamera, IR with a digital image processing system. The resultsindicate that the stagnation Nusselt numbers have the highestvalue for square edge inlet nozzle when compared with othernozzle configurations.
Title of the Paper: Application of CTPN Model of Distributed Active Database in Ambient Intelligent Pervasive Computing Environment
Authors: Bulbul Mukherjee, Souvik Sengupta, Ranjan Dasgupta
Pages: 384-391
Abstract: This work tries to explain the relevancy of distributed active database in some real life complex networked transport system and medical science systems which also involve ambient intelligence, pervasive computing and perceptive environments. These environments are places with the ability of perceiving the context through sensors and other mechanisms. The core of the system relies on a set of modular agents equipped with rules. Those rules are composed of triggers, conditions and actions that enable them to express desired behaviors of the environment. One generic model of distributed active database is done by color time Petri Net which is appropriate in several real life applications and helpful to make understand the complex concurrent activities involved in these applications.
